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The more compact of the Wharfedale DIAMOND 12 series floorstanding options, the DIAMOND 12.3 loses none of the accuracy and musicality of the standmount (bookshelf) options. With enhanced presence and power, the DIAMOND 12.3 is refined and the perfect, affordable floorstanding speaker for 2-channel hi-fi systems, or as the front pair of a seriously impressive home theatre system.
Configured in a 2.5 way system with exception crossover technology, the DIAMOND 12.3 utilises dual 130mm (5”) KlarityTM drivers for impactful yet refined mid-range and bass frequencies, while the 25mm (1”) dome tweeter delivers open and smoothly extended high frequencies.
A voice coil beyond this class
The voice coil is wound on a high-power epoxy/glass fibre bobbin highly unusual in speakers at this price level. This has the advantage of not adding eddy currents and delivering greater power handling than an aluminium bobbin, whilst also being much stiffer than the Kapton type associated with this price-class.
DIAMOND highs
The 25mm dome is made from a woven polyester film with a high-loss coating to deliver open and smoothly extended high frequencies. The magnet system and the front plate have been optimised for wide dispersion and uncompressed behaviour. The front plate is flat and exposes the dome as much as possible; only a very short duct on the front plate balances the acoustic load and improves the SPL (sound pressure level) measurement.
A crossover of style
The crossover network uses an acoustic LKR 24dB topology. This includes air-core inductors of the type more commonly found in high-end speakers, selected because they produce the lowest distortion of all inductor types. As the resistance of the coil is higher than a standard laminated steel or ferrite core inductor, the magnetic structure of the mid/bass driver has been modified to compensate, resulting in fast, clean bass with no distortion from the inductor.
Firm and fair
The DIAMOND 12.1 ’s rear-ported enclosure is precisely sized so that the internal volume works in harmony with the drive unit system to deliver the desired sonic result. A multi-layered sandwich design subdues the identifiable characteristics of the cabinet’s ‘sound’. Even the resonant properties of the glue between the layers was measured to determine the optimum combination.
Brace yourself
Inside the cabinet, Intelligent Spot Bracing connects opposite walls with a specific form of the wood brace to achieve an optimal reduction of cabinet resonance. These braces are precisely modelled by computer simulation to improve upon the commonplace ‘figure of eight’ brace, which may simply transfer resonance from one wall to another.
Specifications :
General description 2.5-way ?oorstanding speaker
Enclosure type bass re?ex
Bass driver 5"(130mm) advanced PP Cone
Midrange driver 5"(130mm) advanced PP Cone
Treble driver 1"(25mm) Textile Dome
AV shield No
Sensitivity(2.83V @ 1m) 89dB
Recommended ampli?er power 30-150W
Peak SPL 102dB
Nominal impedance 8Ω Compatible
Minimum impedance 5Ω
Frequency response(+/-3dB) 45Hz ~ 20kHz
Bass extension(-6dB) 40Hz
Crossover frequency 2.2kHz
Cabinet Volume (in litres) 26.6L
Dimensions ( H x W x D ) (925+50) x 180 x (320+28) mm
Net weight 19.5kg/pcs
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Two way, double reflex
2 x Woofer 130 mm.
Covered paper, double magnet
Tweeter 24 x 50 mm.
Isodynamic mylar diaphragm
Impedance: 8 Ohm (min. 6,5)
RMS Power: 100 W
MAX Power: 150W
Efficiency: 90 dB/W/1m
Dimensions: 170x1080x260mm.
Weight: 17 Kg.
Finish: rosewood, black oak
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PRICE PER SPEAKER
Specifications | Recommended Usage | Front Speakers | | Type | 3-Way Bass Reflex Design |
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| Woofers | Dual 6-1/2" PMD Cone |
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| MidRange Driver | 5" Cone With Waveguide Horn |
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| Tweeters | 1" Aluminum Dome With Waveguide Horn |
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| Magnetic Shielding | Yes |
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| Twin Bass Reflex Ports | Single Port |
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| Gold-Plated Brass Extruded Terminals | Bi-Wiring Terminals |
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| Frequency Response | 30 Hz - 35 kHz |
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| Sensitivity | 88 dB/2.83 V/1 m |
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| Input Power (Maximum / Nominal) | 250W / 100W |
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| Impedance | 6 Ohms |
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| Product Dimensions (W x H x D) | 8-3/4" x 38-9/16" x 13-9/16“ |
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| Product Weight (lbs. each) | 20 Kg
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Dimensions | Metric :4-1/16" W x 4-1/16" D x 39-1/4" H | 10.3 x 10.3 x 99.7 cm
Height with Base | Metric :40-1/8" | 101.9 cm
Accessories :Plastic Foot Tippers; Isolation Spikes
Frequency Response :40 Hz – 30 kHz
Base Dimensions | Metric :8-3/16” W x 8” D | 20.8 x 30.3 cm
Driver Complement :One 1" pure aluminum dome tweeter; Two 3-1/2" high definition midrange drivers; Two 3-1/2" high definition bass drivers; Two 3-1/2" pressure coupled bass radiators
Impedance :Compatible with 8 Ohms outputs
Sensitivity :89 dB
Recommended Associated Amplifier Power :10 – 200 watts
A/V Receiver Crossover Setting :120 Hz
Inputs :One pair of 5 way binding posts
Enclosure :Aircraft grade extruded aluminum
Available Finishes :Gloss Black
Base :Tempered Glass
Packaging :One to a carton
Weight | Metric :23 lbs. | 10.4 kg
Warranty :5 Years
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Dimensions | Metric :5-7/16" W x 4-1/4" D x 25-1/4" H | 13.8 x 10.8 x 64.1 cm
Height with Base | Metric :26-5/8” | 65.1 cm
Base Dimensions | Metric :8” W x 6” D | 20.3 x 16.5 cm
Driver Complement :One 1" pure aluminum dome tweeter; Two 4-1/2" high definition upper bass/midrange drivers; Two 4-1/2" pressure coupled bass radiators
Frequency Response :45 Hz – 30 kHz
Impedance :Compatible with 8 Ohms outputs
Sensitivity :91 dB
Recommended Associated Amplifier Power :10 – 200 watts
A/V Receiver Crossover Setting :100 Hz
Inputs :One pair of 5 way binding posts
Enclosure :Aircraft grade extruded aluminum
Available Finishes :Gloss Black
Base :Tempered Glass
Mounting Options :Vertically Only: On Shelf with included glass base; On wall with included flush mounting bracket
Accessories :Wall bracket; Glass Base
Packaging :One to a carton
Weight | Metric :15 lbs | 6.8 kg
Warranty :5 Years |
If itʼs hard to put the sound of the CM9 into words, thatʼs just as well. This top-of-the-range floorstanding speaker will fill even the largest domestic spaces with music so richly detailed, and so startlingly lifelike, that it will leave you speechless.
The three-way CM9 delivers truly commanding bass with the aid of twin 165mm paper/Kevlar® cone drive units. An FST® driver, with its characteristic compression surround supporting the outer edge of the distinctive Kevlar® cone, is specially developed for outstanding midrange performance. The CM9ʼs Nautilus™ tube-loaded aluminium dome tweeter keeps high frequencies crisp and sharp all the way up to 50kHz and beyond.
The quality of CM Series drive units has made it possible to use minimalist crossovers throughout the whole range. The resulting gentle transition between drivers avoids the unnaturally rapid changes in dispersion that bedevil more complex designs, while the high quality components, carefully chosen after exhaustive listening tests, ensure that as little as possible gets between you and the sound of the original recording.
All CM Series speakers come with aluminium driver trims. Grilles attach magnetically, so there are no unsightly grille-mounting features to spoil the clean lines of the speakerʼs façade. For the finish, you can choose either one of two real-wood veneers in Rosenut or Wengé, or a highly polished gloss black.
Technical features
Nautilus™ tube loaded aluminium dome tweeter
Kevlar® brand fibre cone FST midrange
Flowport™
Description 3-way vented-box system
Drive units 1x ø25mm (1 in) aluminium dome high-frequency
1x ø150mm (6 in) woven Kevlar® cone FST midrange
2x ø165mm (6.5 in) paper/Kevlar® cone bass
Frequency range -6dB at 30Hz and 50kHz
Frequency response 56Hz - 22kHz ±3dB on reference axis
Dispersion Within 2dB of reference response
Horizontal: over 60º arc
Vertical: over 10º arc
Sensitivity 89dB spl (2.83V, 1m)
Harmonic distortion 2nd and 3rd harmonics (90dB, 1m)
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